Its their right to do so, so long as they don't cross the line into say, inciting a riot or soliciting murder. Can that put someone who is unstable over the edge? Possibly. But we can't limit speech based on what someone unstable might do because of it. Besides, when people come right out and say hateful things, at least you know exactly where you stand.

Thanks to this gentleman being so honest about his feelings, we now know exactly what sort of man he is.

For that matter, I'm quite certain the Secret Service knows as well. They can't, and shouldn't, do anything, but I have little doubt they are well aware of this.

Exactly. Now, by the very fact that so many people know what he is all about, it's doubtful he'll be very popular in public opinion. We can just relax and watch nature takes it's course.

__________________"If you love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you and may posterity forget that ye were our countrymen." -- Samuel Adams 1776

"When the people fear their government, there is tyranny; when the government fears the people, there is liberty."